Most of the materials you'll need can be found at office supply stores or hardware stores. However, lenses will likely be your most challenging item to purchase. They can be bought from a variety of sources. Edmund Optics has a variety of high-quality sizes and focal lengths that can be matched to achieve your magnification goal. However, we went with a smaller surplus company that ships, in part because they are relatively close to us (we took the time to get feedback from the owner on our purchasing decisions). Their stock is less expensive, but also somewhat touch-and-go.
Follow the KIS
principle - Keep it Simple!
DISPLAY PLACED ON TABLE TOP
Place each sheet of the Abstract and Project report in individual 3-ring plastic sheet protectors. They can be purchased at your local office supply store.
Adhering to your color scheme, put the Abstract in a 3-ring folder, Project Report in a 3-ring notebook.
Print a separate label for each of the binders.
Arrange these items neatly on the table in front of your display board.
MODELS AND EQUIPMENT
Do not let the models that you made, equipment or parts of the display hang over the table. Keep everything off the floor.
Attach three-dimensional objects to the display board at the fair - not at home.
Ask your science teacher if you are permitted to cover the table with a cloth. If so, coordinate the color with the color scheme of your display board.
Neatly arrange model and or equipment in an organized fashion, along with your Abstract, Journal /Lab Notebook , and Science Report, on the table in front of the display board.
Kids are constantly sending in their science fair projects display board pictures (gee..that's a mouth full!), so please stay in touch by subscribing to my FREE monthly Science Fair Enthusiasts e-zine.